This is a multi-page document showing the periodic table of chemical elements, and on the Large Print version, a key to the table. The LP key is on the first page. The table is in five parts, which can be joined together. There is a locator dot and title shown on each page. These will be at the top left of the page when it is the correct way up. This is a complex diagram and blind and partially sighted people may find it helpful to have some sighted assistance at first viewing. The table shows element categories (in large print only), groups (families) and periods, plus the atomic number, the chemical symbol and atomic weight for each element. Key to Large Print periodic table - The key to the table shows the colours used to represent the element categories, and is arranged in two columns. In each column, the colour samples are to the left with their names to the right. The categories are not shown on the tactile version of the table, as there is insufficient space in the cells for textures. It is recommended that you download the Periodic table overview from the ImageShare site, as this shows the element categories in tactile format. Periodic tabl The table comprises cells arranged in columns and rows. A cell shows the atomic number, chemical symbol and atomic weight for an element. In the Large Print version of the table, the cell colour relates to the element category as shown on the key. The vertical columns show the groups (or families) of elements. The groups are numbered across the top of the page. A horizontal row in the table is a period. The periods are numbered on the left side of the first page of the table. In this arrangement of the periodic table, the lanthanoids and actinoids (periods 6 to 7, known as the f-block) are separated from the other elements and are shown stretching across the bottom of the page. The f-block on pages 3, 4 and 5 has no periodic numbers marked on the page. Joining the page - To allow space for braille labelling, this table has been split into five sections on separate pages. Join them to each other in number order, from left to right, trimming the periodic numbers as required. Pages 1 and 5 are A4 size and in portrait orientation. Pages 2 to 4 are A3 size and in landscape orientation. Trim the pages to allow joining, using the light, vertical dashed grid lines as guides. When joining the tactile pages, care should be taken to avoid covering any part of the table.